Circulatory shock

Question 1

definition: shock

Answer 1

CV system cannot maintain adequate cellular perfusion

Question 2

what is the most important indicator of overall prognosis for cardiogenic shock?

Answer 2

LV function

Question 3

what is the primary cause of distributive shock?

Answer 3

sepsis

Question 4

what is the classic situation for cardiogenic shock?

Answer 4

large amounts of contractile myocardium are lost or have severely depressed function resulting in reduced CO (decreased LVEF)

Question 5

what are the etiologies of cardiogenic shock? which is primary?

Answer 5

acute MI (primary)
dilated cardiomyopathy
valvular
arrhythmia

Question 6

what is the classic situation involving hypovolemic shock?

Answer 6

reduced circulating blood volume resulting in reduced cardiac filling and decreased CO

Question 7

what are the two main etiologies of hypovolemic shock?

Answer 7

1. blood loss

2. fluid depletion

Question 8

what is the effect of acidosis on heart function?

Answer 8

decrease

Question 9

what are the general principles of therapy for shock?

Answer 9

cardiac rhythm monitoring 
2 IVs fluid (NS) 
ventilation 
oxygen 
arterial blood gasses 
vasopressors 
inotropics 
abx